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Drisko, G.L.; Zelcer, A.; Caruso, R.A.; Soler-Illia, G.J.D.A.A. "One-pot synthesis of silica monoliths with hierarchically porous structure" (2012) Microporous and Mesoporous Materials. 148(1):137-144
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Abstract:

Poly(furfuryl alcohol) (PFA) and block copolymer Pluronic F127 were used as pore templates to create mechanically robust silica monoliths with a hierarchical and interconnected macro-mesoporous network in an easy, reproducible bimodal scale templating process. Control over the morphology was obtained by varying the reactant ratios. Phase separation on the submicrometer scale occurred when furfuryl alcohol was cationically polymerized and therefore became immiscible with the solvent and the silica precursor. Upon a subsequent sol-gel reaction, a silica-F127 matrix formed around the PFA spheres, leading to macropore structures with mesoporous walls. Surface areas of the final structures ranged from 500 to 989 m2 g-1 and a maximum pore volume of 4.5 mL g-1 was achieved. Under mildly acidic conditions, micelle-templated mesopores resulted. Interconnected macropores could be obtained by increasing the pH or the block copolymer concentration. The formation mechanism and the relationship between PFA, Pluronic F127 and acidity are discussed in detail. © 2011 Elsevier Inc. All rights reserved.

Registro:

Documento: Artículo
Título:One-pot synthesis of silica monoliths with hierarchically porous structure
Autor:Drisko, G.L.; Zelcer, A.; Caruso, R.A.; Soler-Illia, G.J.D.A.A.
Filiación:Particulate Fluids Processing Centre, School of Chemistry, University of Melbourne, Melbourne, VIC 3010, Australia
Comisión Nacional de Energía Atomica, Gerencia Quimica, Avenida General Paz 1499, San Martin, Provincia de Buenos Aires 1650, Argentina
Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, Argentina
Commonwealth Scientific and Industrial Research Organization, Materials Science and Engineering, Clayton South, VIC 3169, Australia
Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Palabras clave:Furfuryl alcohol; Hierarchical pore structures; Monolith; Polymerization-induced phase separation; Silica; Acidic conditions; Copolymer concentration; Formation mechanism; Furfuryl alcohol; Macropore structure; Macropores; matrix; Meso-pores; Mesoporous walls; Monolith; One-pot synthesis; Pluronic F-127; Poly(furfuryl alcohol); Polymerization-induced phase separation; Pore templates; Pore volume; Porous structures; Reactant ratios; Silica monoliths; Silica precursors; Sol-Gel Reaction; Submicrometer scale; Surface area; Templating; Block copolymers; Monolithic integrated circuits; Silica; Synthesis (chemical); Phase separation
Año:2012
Volumen:148
Número:1
Página de inicio:137
Página de fin:144
DOI: http://dx.doi.org/10.1016/j.micromeso.2011.08.007
Título revista:Microporous and Mesoporous Materials
Título revista abreviado:Microporous Mesoporous Mater.
ISSN:13871811
CODEN:MIMMF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13871811_v148_n1_p137_Drisko

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Citas:

---------- APA ----------
Drisko, G.L., Zelcer, A., Caruso, R.A. & Soler-Illia, G.J.D.A.A. (2012) . One-pot synthesis of silica monoliths with hierarchically porous structure. Microporous and Mesoporous Materials, 148(1), 137-144.
http://dx.doi.org/10.1016/j.micromeso.2011.08.007
---------- CHICAGO ----------
Drisko, G.L., Zelcer, A., Caruso, R.A., Soler-Illia, G.J.D.A.A. "One-pot synthesis of silica monoliths with hierarchically porous structure" . Microporous and Mesoporous Materials 148, no. 1 (2012) : 137-144.
http://dx.doi.org/10.1016/j.micromeso.2011.08.007
---------- MLA ----------
Drisko, G.L., Zelcer, A., Caruso, R.A., Soler-Illia, G.J.D.A.A. "One-pot synthesis of silica monoliths with hierarchically porous structure" . Microporous and Mesoporous Materials, vol. 148, no. 1, 2012, pp. 137-144.
http://dx.doi.org/10.1016/j.micromeso.2011.08.007
---------- VANCOUVER ----------
Drisko, G.L., Zelcer, A., Caruso, R.A., Soler-Illia, G.J.D.A.A. One-pot synthesis of silica monoliths with hierarchically porous structure. Microporous Mesoporous Mater. 2012;148(1):137-144.
http://dx.doi.org/10.1016/j.micromeso.2011.08.007